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Expired Canadian patentCanada

Size identification system for bed sheets and the like

CA 2489115 C · Owner: Lauderman, Jennifer L. · Inventors: Lauderman, Jennifer L.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A size-identification system for bed sheets and the like is developed at the stage of weaving the greige fabric from which the bed sheets are made. One woven greige fabric (12) has a colored warp yarn (14') in a selvage (20). A bed sheet (24) made from the fabric (12) has a selvage (26) which includes a colored warp yarn (30). Another woven greige fabric (38) has a plurality of colored filling yarns (44') with each filling yarn (44') being spaced a predetermined distance from an adjacent filling yarn (44') along the length of the fabric (38) so as to have one of the yarns (44') located in a preselected section of a bed sheet (50) made from the fabric (38). A bed sheet (50) made from the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed December 6, 2004 and granted April 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 6, 2004
GrantedApril 24, 2012
Term endedDecember 6, 2024
Patent numberCA 2489115 C
Classification (IPC)D03D15/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 6, 2004Patent grantedApril 24, 2012Term endedDec 6, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.